Superconductor–insulator transition in La2 − xSrxCuO4 at the pair quantum resistance

@article{Bollinger2011SuperconductorinsulatorTI,
  title={Superconductor–insulator transition in La2 − xSrxCuO4 at the pair quantum resistance},
  author={Anthony T. Bollinger and G Dubuis and J. Yoon and Davor Pavuna and Jim Misewich and I Bo{\vz}ovi{\'c}},
  journal={Nature},
  year={2011},
  volume={472},
  pages={458-460}
}
High-temperature superconductivity in copper oxides arises when a parent insulator compound is doped beyond some critical concentration; what exactly happens at this superconductor–insulator transition is a key open question. The cleanest approach is to tune the carrier density using the electric field effect; for example, it was learned in this way that weak electron localization transforms superconducting SrTiO3 into a Fermi-glass insulator. But in the copper oxides this has been a long… CONTINUE READING